Heltec Automation Automation ESP32 LoRa SX1278 0.96-Inch OLED WiFi Module
Heltec Automation Automation ESP32 LoRa SX1278 0.96-Inch OLED WiFi Module - Image 2
Heltec Automation Automation ESP32 LoRa SX1278 0.96-Inch OLED WiFi Module - Image 3
Heltec Automation Automation ESP32 LoRa SX1278 0.96-Inch OLED WiFi Module - Image 4
SKU: IOWC-1772
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Heltec Automation Automation ESP32 LoRa SX1278 0.96-Inch OLED WiFi Module

₹2,739.00 (Inclusive of all taxes)
Out of Stock

The Heltec Automation Automation ESP32 LoRa SX1278 module integrates a dual-core ESP32 for Wi-Fi/Bluetooth, a 433MHz LoRa transceiver, and a 0.96-inch OLED display. It’s programmable via Arduino IDE or ESP-IDF for long-range IoT sensor nodes and remote telemetry applications.

Features

  • Dual-core ESP32 processor (240MHz) with integrated 802.11 b/g/n Wi-Fi and dual-mode Bluetooth (Classic & BLE) for local connectivity.
  • SX1278 LoRa transceiver operating at 433MHz offers -148dBm sensitivity and +20dBm output power for long-range, low-power communication up to several kilometers.
  • Integrated 0.96-inch blue OLED display provides real-time status, sensor readings, and debugging information without external components.
  • Includes a 16cm antenna and two 18-pin Burg connectors for easy prototyping and integration into Arduino-based projects.
  • Supports multiple Wi-Fi modes (Station, softAP, Sniffer) and is compatible with the Arduino IDE, ESP-IDF, and MicroPython for flexible firmware development.

Out of stock

Description

The Heltec Automation Automation ESP32 LoRa SX1278 module is a comprehensive IoT development platform combining the processing power of an Espressif ESP32 with the long-range capabilities of a Semtech SX1278 LoRa modem. The ESP32 features a dual-core Tensilica LX6 processor running at 240MHz, 520KB of SRAM, and integrated Wi-Fi and Bluetooth radios, providing robust local network connectivity.

The integrated SX1278 chip operates in the 433MHz ISM band, delivering a high link budget with -148dBm receiver sensitivity and +20dBm transmit power output, enabling reliable communication over distances exceeding 2km in open areas. This makes the module ideal for battery-powered remote sensing where Wi-Fi coverage is unavailable. The onboard 0.96-inch OLED display offers immediate visual feedback for data, system status, or debug messages, accelerating development and deployment in field applications.

Key Features

  • All-in-one IoT node combining Wi-Fi, Bluetooth, LoRa, and a display on a single compact board.
  • High-performance ESP32 dual-core processor for complex application logic and network protocol handling.
  • Long-range 433MHz LoRa communication with excellent sensitivity for penetrating urban or rural environments.
  • Onboard OLED screen eliminates the need for external displays in sensor readout or status monitoring projects.
  • Includes necessary RF antenna and header connectors for rapid prototyping and deployment.
  • Wide operating temperature range (-40°C to +90°C) suitable for industrial and outdoor environments.
  • Programmable with popular frameworks like Arduino Core for ESP32, ESP-IDF, and MicroPython.

Applications

  • Remote environmental monitoring stations for agriculture (soil moisture, temperature).
  • Long-range asset tracking and telemetry for logistics and fleet management.
  • Wireless sensor networks (WSN) for industrial IoT (IIoT) and smart city infrastructure.
  • Battery-powered field gateways collecting sensor data via LoRa and backhauling via Wi-Fi.
  • DIY maker projects requiring a display for data visualization and long-range connectivity.

Technical Specifications

Microcontroller/SoCEspressif ESP32 (Dual-core LX6 @ 240MHz)
Wireless ProtocolsWi-Fi 802.11 b/g/n, Bluetooth 4.2 (Classic & BLE), LoRa (SX1278)
Frequency Range433MHz (LoRa)
RF Transmit Power / SensitivityLoRa: +20 dBm / -148 dBm; Wi-Fi: Up to 19.5 dBm / -98 dBm
Supply VoltageTypically 3.3V (via onboard regulator from 5V USB)
InterfacesGPIO, UART, I2C (for OLED), SPI, ADC, DAC
Antenna ConnectorIntegrated trace antenna (Wi-Fi/BT) & IPEX/u.FL for LoRa (with included whip antenna)
Display0.96-inch monochrome blue OLED (SSD1306 driver)
Operating Temperature-40°C to +90°C
Dimensions52mm (L) x 25mm (W)

Frequently Asked Questions

How do I program this Heltec Automation ESP32 LoRa module with the Arduino IDE?

First, install the ESP32 board support via the Arduino Boards Manager. Then, add the Heltec Automation ESP32 library from the Library Manager, which includes examples for the OLED and LoRa radio. Select 'Heltec Automation WiFi LoRa 32 (V2)' as your board, connect via USB, and upload your sketch. The library handles display initialization and provides simple LoRa.send() and LoRa.receive() functions for communication. Ensure the correct LoRa frequency (433MHz) is set in your code.

What is the power supply requirement and typical current consumption?

The module is typically powered via its micro-USB port at 5V, which an onboard regulator steps down to 3.3V for the core circuitry. During active transmission with both radios on, peak current can reach several hundred milliamps. Utilizing deep sleep modes on the ESP32 and the low-power listening capabilities of the SX1278 LoRa chip can reduce average current to microamp levels, making the board suitable for battery-operated field deployments lasting months.

How do I attach and configure the included LoRa antenna?

The module has an IPEX (u.FL) connector for the LoRa radio. Carefully connect the included 16cm whip antenna's IPEX plug, ensuring it clicks into place. For optimal range, keep the antenna upright and away from large metal objects or other RF sources. In your code, initialize the LoRa library with the correct frequency (433E6 for 433MHz). The antenna is tuned for this band, and mismatched frequencies will severely reduce performance and may damage the RF front-end.

Package Includes

  • 1 x Heltec Automation ESP32 LoRa SX1278 0.96-Inch OLED WiFi Module
  • 1 x 16cm LoRa Whip Antenna
  • 2 x 18-pin Burg Connectors (Straight)

Additional Information

Weight 0.015 kg
Dimensions 5.2 × 2.5 cm

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